Refrigeration vaporizer



W; O. VOSS REFRIGERATION VAPORIZER Mara 15, 1932.

Filed March 25 1927 I W 0. V965.

hends the provision of a grqfup Patented Mar. 15, 1 932 UNITEDSTATESTPATENT OFFICE WILLIAM O. V OSS, F YORK, PENNSYLVANIA, ASSIGNOR TOMARTIN-PARRY COBP OBlA- TION, OF YORK,

PENNSYLVANIA,

A CORPORATION OF DELAWARE REFRIGERATION varomznn Application filed March25, 1927. Serial m. 178,422.

This invention'relates to refrigerating systems of thecompressor-condenser-expander 'in the trays provided for such evices.

More specifically, the invention compreof substantially U shaped tubeslongitudinally disposed with respect to the longitudinal axis of thetank and both ends of each of said tubes being secured to the same sideof the tank.

Still another object of the invention is to provide two groups of saidtubes, longitudinally disposed as aforesaid, one group having the endsof the tube secured to' one side wall of the tank, and the other grouphaving the ends of the tubes secured to the opposite side of the tank.

'Still another object of the invention is to bend the lower ends ofcertain of said tubes of said groups inwardly, toward each other,

to define a chamber between the two groups.

of tubes and the tank.

Numerous other objects of the invention will be readily apparent tothose skilled in the art from the following description, taken inconjunction with the drawings attached hereto and forming a partthereof, in'which Fig. 1 represents an end view, Fig. 2 is alongitudinal view partly in section of the tank and tube arrangement,and Fig. 3 is a detailed view partly in section of'the expansion coilstructure.

Referring now specifically to the drawings, wherein like referencecharacters represent like parts, 1 represents the vaporizing tankprovided with headers 2-and 3. The tank portion is preferably secured tothese headers by inturning the marginal portions thereof as at. 4 and 5,although it is obvious that any other connecting arrangement may beemployed.

To the header 3 is preferably secured a closure (not shown) forconducting the vanorized refrigerating medium from the tank to thecompressor and for returning the liquetied refrigerating medium from'thecondenser to the tank, as is well known in the art. The tank ispreferably provided with a float arrangement for. maintaining apredetermined level of the liquid refri erant in the said vaporizingtank, but 'as fi oat arrangements of this character are well known inthe art and form no part of this invention, it has not been specificallydisclosed in the drawings, l I

in carrying out my invention, I provide several groups of substantiallyU-shaped tubes, longitudinally disposed with respect to the tank, asdistinguished from transversely arranged, and each of these groups oftubes have both of their ends secured to the same side wall of the tank.The tubes referred to are designated by reference nu-' m'erals 6, 7, 8,and 9, the ends of whicl are secured to the tank in substantially thesame general longitudinal plane as at 10, 11, 12, 13, 14, 15, 16, and17. These tubes are preferably of diiferential lengths and capacities.Thus, the nestedtubes are progressively increased in capacities from thecentral tube 6 to the outertube 9. The tubes 6 and 7 are preferablyarranged in a true vertical plane, one within the other, as shown in thedrawings, while the tube 8 is slightly turned inwardly at its lower bentportion as at 18. The outer tube 9 surrounding each of the tubes 6, 7and 8 aforesaid, is preferably bent inward- 1y at its lower portion to agreaterextent, as

shown at 19.

Ipreferably provide two groups of said .tubes, one secured to one sidewall of the vaporizing tank and the other group of tubes therein securedtothe adjacent side wall of the tank, and the inner ends of both of thelarger tubes, of said groups, are turned inwardly toward each other inorderto define a chamber 20 therebetween for freezing purposes. I

The drawings attached heretorepresent the preferred form of understoodthat various changes in the arrangements of the parts may be madewithout departing from the spirit of the invention as defined in thefollowing claims.

the invention, but it is Having thus described the invention, what Iclaim is: v

1. In 'a vaporizer for refrigerating systems, the combination with avaporizer tank, a group of substantially U-shaped tubes connected Withsaid tank, and longitudinally disposed with respect 'to the longitudinalaxis of thetank, saidtubes having each oftheir ends secured to the sameside Wall of the tank, and at least some of said tubes being bent in-'wardly at their lower portions to define a chamber.

2. In a. vaporizer for refrigerating systems, the combination With avaporizer tank, several' groups of vaporizer tubes attached to' saidtank at opposite points thereof, each of said groups of-tubes beingdisposed longitudinally with respect to the longitudinal axis of thevaporizer tank, and at least one of said tubes of each groups being bentinwardly at their lower portions, toward each other, to there-v bydefine a chamber between the expansion tank and the said tubes.

3. In a vaporizer for refrigerating systems, the combination with avaporizing tank, a group of superimposed vaporizer tubes connected withone side of the tank and depending therefrom, said tubes being mountedin a longitudinal direction with respect to the longitudinal axis of thetank, and a second group of superimposed nested vaporizer tubes havingtheir ends secured to the adjacent wall of the vaporizing tank anddepending therefrom in parallel relationship with the first spacebetween the several groups of tubes.

named group of tubes, thereby to define a 4. In a vaporizer forrefrigerating systems, the combination with a vaporizer tank, severalgroups of nested vaporizer tubes attached to said tank at oppositepoints thereof and .depending therefrom, each of said groups of tubesbeing disposed longitudinally with respect tothe longitudinal axis ofthe vaporizer tank, and defining a chamber between the expansion tankand said groups of tubes.

5. In a vaporizer for refrigerating systems,

the combination with a vaporizer tank, several groups of vaporizer tubesattached to said tank at opposite points thereof and depend ingtherefrom, the tubes in each of said groups having differentialcapacities and being in substantially nested disposition, said groups oftubes being spaced apart to thereby define a chamber therebetween.

6. A cooling unit for refrigerators, com-v prisin a cooling compartment,a header arrange over said compartment, and a plurality of refrigerantconducting tube loops each of which has upright sections arranged adjacent to the same side of said compartment and both connected at theirupper ends with thesame side of said header and the lower parts of saidupright sections being connected by a return bend which is arrangedunder.- neath said compartment.

7. -A cooling unit for refrigerators, comprising a'cooling compartment,a header arranged over said compartment, and a plurality of refrigerantconducting tube loops underneath said compartment, saidupright sectionsbeing arranged transversely. in, line with each other.

8. A cooling unit for refrigerators, comprising a cooling compartment, aheader arranged over said compartment, and a plurality of refrigerantconducting tube loops each of which has upright sections arrangedadjacent to the same side ofsaid compartment and both connected at theirupper ends with the same side of said header and the lower parts of saidupright sections being con- Y nected by a return bend which is arrangedunderneath said compartment, said upright sections being arrangedtransversely in line with each other, and the upper'ends thereof beingturned inwardly toward said header.

9. A cooling unit for refrigerators, comprising a cooling compartment, aheader arranged above said compartment, and a plurality of refrigerantconducting tube loops each of which has upright sections arrangedadjacent to the same side of said compartment'and connected at theirupper ends by the header and at their lower parts by a return bend whichextends underneath said compartment and the parts of which are arrangedhorizontally side by side.

10. A cooling unit for refrigerators comprising a header, a plurality ofnested tubes connected with said header and arranged to provide a row oftubes extending longitudinally with respect. tothe axis of the header, asecond row of longitudinal nested tubes laterally spaced from said firstrow of tubes, the ends of one row of tubes communicating with oneside ofthe header-and the ends of the second row of tubes communicating withanother side of the header.

11. A. cooling unit for refrigerators com-- prising a header, a.plurality of nested tubes having their ends connected to andcommunieating with the header on one side thereof and arranged toprovide a row of tubes extending longitudinally with. respect to theaxis of the header, a second row of nested longitudinal tubes laterally"spaced from said first row of tubes and having vtheir endscominunicating with another side of the header, the rows of tubes beingspaced to define a compartment adapted to receive a cooling receptacle.

In testimony whereof I atfix my signature.

o; voss.

